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238.0 Aluminum vs. EN-MC65120 Magnesium

238.0 aluminum belongs to the aluminum alloys classification, while EN-MC65120 magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 238.0 aluminum and the bottom bar is EN-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 76
45
Elongation at Break, % 1.5
3.1
Fatigue Strength, MPa 110
80
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 28
17
Tensile Strength: Ultimate (UTS), MPa 210
160
Tensile Strength: Yield (Proof), MPa 170
110

Thermal Properties

Latent Heat of Fusion, J/g 430
330
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 600
590
Melting Onset (Solidus), °C 510
520
Specific Heat Capacity, J/kg-K 840
970
Thermal Conductivity, W/m-K 100
100
Thermal Expansion, µm/m-K 21
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
25
Electrical Conductivity: Equal Weight (Specific), % IACS 67
120

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 3.4
1.9
Embodied Carbon, kg CO2/kg material 7.4
25
Embodied Energy, MJ/kg 140
190
Embodied Water, L/kg 1040
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.9
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 180
140
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 42
62
Strength to Weight: Axial, points 17
23
Strength to Weight: Bending, points 23
34
Thermal Diffusivity, mm2/s 37
56
Thermal Shock Resistance, points 9.1
9.8

Alloy Composition

Aluminum (Al), % 81.9 to 84.9
0
Copper (Cu), % 9.5 to 10.5
0 to 0.030
Iron (Fe), % 1.0 to 1.5
0 to 0.010
Magnesium (Mg), % 0 to 0.25
91.8 to 95.1
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0
0 to 0.0050
Silicon (Si), % 3.6 to 4.4
0 to 0.010
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 1.0 to 1.5
2.0 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010